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Konrad Windszus updated JCRVLT-672: ----------------------------------- Fix Version/s: 3.6.8 > Provide a Version comparison function for "is newer" checks > ----------------------------------------------------------- > > Key: JCRVLT-672 > URL: https://issues.apache.org/jira/browse/JCRVLT-672 > Project: Jackrabbit FileVault > Issue Type: Improvement > Affects Versions: 3.6.6 > Reporter: Hans-Peter Stoerr > Assignee: Konrad Windszus > Priority: Minor > Fix For: 3.6.8 > > > I suggest to add a function to org.apache.jackrabbit.vault.packaging.Version > that provides a sensible partial ordering for checking whether one package is > newer than another. > Background: > [org.apache.jackrabbit.vault.packaging.Version#compareTo|https://github.com/apache/jackrabbit-filevault/blob/jackrabbit-filevault-3.6.6/vault-core/src/main/java/org/apache/jackrabbit/vault/packaging/Version.java#L157] > provides a nice function to sort package versions e.g. for the purpose of > displaying them in a predictable order that is close to the probable > timeline. But sometimes you want an "is newer than" relationship - e.g. for a > sanity check during package installation that you don't install an older over > a newer package. As far as I know, Adobe AEM is actually (ab-)using that > compareTo function for that purpose. That is a problem, because if you deploy > e.g. 1.2.3-SNAPSHOT for a while on a server and then create a release 1.2.3, > it'll refuse automatic installation because it wrongly thinks 1.2.3-SNAPSHOT > is newer than 1.2.3. > Now, obviously you cannot fix that AEM problem here, but you could provide a > function at Version for future use, that would be a nicely useable "is newer > than" relationship for that purpose, and add a comment warning people not to > use Version.compareTo for such a sanity check. That'd be nice for AEM usage, > but also for other package managers, like our [Composum package > manager|https://www.composum.com/home/nodes/pckgmgr.html?pages.locale=de]. > While the ordering of the numerical prefix (which is also implemented by > Version.compareTo) is pretty widely used, there is no widely used ordering > for the suffixes - they could be anything like -SNAPSHOT, -SNAPSHOT-12, -rc1, > -alpha, -testing and whatnot. So it's not possible to give a full order for > that purpose. My suggestion is to provide a partial ordering based on the > numerical prefix, but to ignore the suffix completely. Perhaps provide a > function Version.compareNumericPrefix ? -- This message was sent by Atlassian Jira (v8.20.10#820010)